Commit Graph

10 Commits

Author SHA1 Message Date
Chris Dalton
82094cdb9d Chain indirect stroke ops that have mismatched colors
The indirect tessellator can't combine overlapping, mismatched colors
because the log2 binning draws things out of order. But we can still
chain them together and generate a single long list of indirect draws.

Bug: chromium:1172543
Bug: skia:10419
Change-Id: Id7fc7488411a2a189e24cd7dd692e5c78497f498
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/370197
Reviewed-by: Brian Salomon <bsalomon@google.com>
2021-02-19 09:25:25 +00:00
Chris Dalton
1017a3558f Add a dynamic color attrib to hw tessellated stroking
Only adds color to the hardware tessellator. The indirect tessellator
reorders draws with is log2 binning, so we can't have different
colors.

Bug: chromium:1172543
Bug: skia:10419
Change-Id: I2a3700cd4572e8222002bfb028af05c6ec447708
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/369976
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-02-19 00:19:05 +00:00
Chris Dalton
42582fc97b Add dynamic stroke attribs to tessellated stroking
Allows us to batch together strokes that have different SkStrokeRecs.

Bug: chromium:1172543
Bug: skia:10419
Change-Id: I11dc01e60bc17a6bb3c3b635f9edb2944a2f2edc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/369579
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2021-02-18 19:35:25 +00:00
Chris Dalton
dfa91793f8 Remove GrStrokeIndirectTessellator::fResolveLevelForCircles
Stores it on the ResolveLevelCounter instead. This will allow
different paths to have different stroke widths.

Bug: chromium:1172543
Bug: skia:10419
Change-Id: I0ff68b7287027a22d9374826b3c57290192489bb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368937
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2021-02-11 19:14:59 +00:00
Chris Dalton
b849f7a791 Remove shims for reordering indirect draw command signatures
Change-Id: I0eb48cc8a7721cc0fbdfa579b36db5e6ed0aa695
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368917
Reviewed-by: Jim Van Verth <jvanverth@google.com>
2021-02-11 00:19:35 +00:00
Chris Dalton
a43d58393a Convert stroke tessellation to using GrVertexWriter
Bug: chromium:1172543
Bug: skia:10419
Change-Id: Ie2d05b0d37e03e8cd3eb69c67da89c02ffa49ddb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/367576
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-02-08 23:16:34 +00:00
Chris Dalton
a6a3d05ffb Add a writer class for indirect draw commands
This enforces write-only access to the mapped buffers, will enable
chaining of indirect strokes, and gives us the ability to reorder the
fields for Metal.

Bug: chromium:1172543
Bug: skia:11291
Bug: skia:10419
Change-Id: I4449ff85dd0019f6d6d6781ede52bcf26dee8b02
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/367416
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2021-02-08 19:13:42 +00:00
Chris Dalton
2224100b25 Create an abstract GrStrokeTessellator class
Now there is only one op to tessellate a stroke, and it creates its
own GrStrokeIndirectTessellator or GrStrokeHardwareTessellator
internally. This will allow us to dynamically switch into hardware
tessellation when we need to batch strokes that have different
parameters or colors.

Bug: chromium:1172543
Bug: skia:10419
Change-Id: I3cddb855fdbb9ab018785584497c843e3e31b75e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/366056
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
2021-02-04 19:57:28 +00:00
Chris Dalton
39ce12e0d4 Don't store tessellation tolerances on GrStrokeOp
Instead we calculate these values on the fly as needed. This is
necessary for hairlines because the tessellator will operate on them
in post-transform space, which requires different tolerances than the
setup code.

Bug: skia:10419
Change-Id: Ia8ffa8858b45949521c085ccbe5712b3842f785f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343499
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2020-12-14 18:16:47 +00:00
Chris Dalton
c2a1746b42 Implement stroke tessellation with indirect draws
Adds a vertex shader that maps a variable-length triangle strip to a
stroke and its preceding join. Adds a new op that generates stroke
instances from a path, bins them by log2 triangle strip length (using
SIMD for the calculations), and renders them with indirect draws.

Bug: skia:10419
Change-Id: I6d52df02cffe97d14827c6d66136957f1859f53b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339716
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
2020-12-10 00:25:17 +00:00